When using advanced two-axis machining methods, the type of tool utilised requires careful consideration. Final workpiece accuracy is dictated by several error sources, including the machines inherent precision, fixturing, tool setting, environmental conditions, and tool waviness. While many error sources remain more random in nature, Contour Fine Tooling is able to provide predictably high accuracy controlled waviness tools that eliminate that source of error, allowing you to focus on other aspects of process optimisation. In addition, production costs can be dramatically reduced by effective tool selection, usage and planning.

Contour Fine Tooling are pioneers in the development and manufacture of controlled waviness tools. In response to the increasing use of two-axis machining systems, Contour Fine Tooling has further developed this range of tools, which are available with conical or cylindrical clearance. "Controlled waviness" dictates that the radius shape deviates from a true circle by a guaranteed value. The standard waviness value for Electro-Optics tools is <0.25µm. However, Contour Fine Tooling can offer an extensive range from <1.0µm down to <0.05µm (yes – that’s less than fifty nanometres)!

These tools come complete with a ‘controlled-waviness’ certificate showing the actual radius size, amount of arc, shape and deviation value, measured ‘peak to valley’ (not averaged). They are available with natural or synthetic single crystal diamond and with the traditional solid shank or the insert system.